[Bug preprocessor/55115] [4.9/5/6 Regression] missing headers as fatal breaks cproto logic
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55115 --- Comment #18 from RGomes --- The cproto design and usage is not broken. Everyone here agrees that a missing include during "compilation" rightfully should generate an error. It is the "preprocessor behavior only" where we are asking for tolerance for a missing include. Why? Because a .h file that contains only function prototypes is being generated ahead of the compilation (cproto is doing this step, using the gcc preprocessor) - then later, that generated .h file "will" be present during compilation. This is just one use case - there are others - so the request being made is only for the preprocessor eliminating this error - not compilation. (Followup to my earlier post - my present workaround was reluctantly installing 2 gcc compilers: a 4.4 compatible one invoked for prototyping only, and the latest gcc for compilation).
[Bug driver/19541] need another option to support what -I- did just besides -iquote
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19541 RGomes changed: What|Removed |Added CC||Robert.Gomes at igt dot com --- Comment #25 from RGomes --- I also vote for preserving the -I- original behavior, i.e. simply get rid of the deprecation message from the precompiler. We also have situations where code is pulled in from other directories and vpath is in play, and these sort of use cases rely on the behavior provided by -I-, despite the original motivation behind wanting to deprecate it. Thanks.
[Bug preprocessor/55115] [4.9/5/6 Regression] missing headers as fatal breaks cproto logic
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55115 RGomes changed: What|Removed |Added CC||Robert.Gomes at igt dot com --- Comment #16 from RGomes --- Hi, I have watched this thread for years expecting a switch to be introduced to allow the former GCC behavior of tolerating missing header files and I can no longer remain on the side lines. I echo the sentiment of others that the ability to permit missing headers is something we rely on to auto-generate said header files using cproto, and we've been doing this as far back as GCC 3.x. Of course missing headers should be an error during compilation, but pre-compile it is natural to auto-generate a variety of header files, at least in our situation. I find myself having to downgrade to GCC 4.4.7 in order to work around this issue, but I would prefer to continue to use future editions of GCC. Please see if a safety valve can be put in to allow the former behavior, it seems like this issue keeps getting bumped to future revisions but at some point we are going to be between a rock and a hard place with decisions about OS and GCC upgrades. Thank you for your anticipated consideration.
